Homebase S380 - Alarm siren sounds, but why?

Hi

I have multiple devices paired but so far only one powered camera:

  1. Eufy doorbell camera
  2. Multiple door sensors
  3. Multiple water/freeze sensors
  4. One movement sensor

The siren on the homebase went off at 1am for no reason. It’s done this before 1 time

Checking the Events in the app, I see nothing for today at all. No water detection, no movement, nothing. Nothing on the doorbell camera either. In fact, lots of door events and doorbell videos the prior day but nil after midnight.

How do we find out what set the siren off?